OMEGA DE VILLE CO-AXIAL ESCAPEMENT. Switzerland Omega SA 2001 Hard Cover Near Fine Very Good 43 pp, 8 1/2" H. Red paper-covered boards with silver lettering/omega symbol and blindstamped co-axial escapement on front board, silver endpapers. Dust jacket has embossed co-axial escapement on front panel. Colour and b&w photographs, reproductions, diagrams. A short history of the Omega watch company, introducing their new co-axial escapement. Very minor wrinkling at bottom of spine. Dust jacket has very minor edge wear, tiny scuff on spine, minor rubbing, three tiny shallow dents on rear panel.
Negretti, Giampiero & De Vecchi, Paolo.PATEK PHILIPPE: COMPLICATED WRIST WATCHES - KOMPLIZIERTE ARMBANDUHREN - MONTRES-BRACELETS COMPLIQUEES. Koln Konemann 1999 382901449X / 9783829014496 First Thus Hard Cover Near Fine Very Good+ 180 pp, folio (13 1/4" H). Profusely illustrated with colour photographs. Trilingual text (English / German / French). "Since its foundation in 1839, the Geneva factory (of Patek Philippe) has determined the appearance of each type of watch popular at the time, from pocket watches to table clocks and wrist watches. Countless patents have been developed there in order to substantially improve the reliability and precision of their timepieces. At international auctions, their individual models have always been amongst the most highly prized and sought after by collectors. This volume presents an important private collection with timepieces dating from 1923 to 1981. The exclusive focus of attention is on the most interesting chapter in the history of Patek Philippe's development: the so-called complicated wrist watches whose development was made possible by the firm's winding mechanism, patented in 1861. The various models are classified according to type of watch and date of production, and are accompanied by the essential technical data together with lavish use of illustrations." Contents: Patek Philippe: Collecting Quality; Patek Philippe: Technical and Stylistic Excellence on Your Wrist; Chronographs; Perpetual Calendar Watches with Chronographs; Calendar Watches; World Time Watches; Dual Time Zone Watches; Minute Repetition Watches; Bibliography; Short Chronology. Very minor wrinkling at top/bottom of spine. Dust jacket has very light edge wrinkling - mainly at top/bottom of spine, tiny dent and faint crease on rear panel.